DjangoCon 2009 Keynote

Now what?
Ted Leung
Sun Microsystems
ted.leung@sun.com
@twleung

Thursday, September 10, 2009

Who is this guy?


Thank you!


http://www.ﬂickr.com/photos/jamescalder/1797581548/

Django jobs increased 692%
Rails jobs increased 117%
PHP jobs increased 86%


Frameworks being used by startups

140

105

70

35

PHP 0
Rails
Django

http://news.ycombinator.com/item?id=750142

Apps


GeoDjango


2008


2009


Web Apps
are
Changing



http://www.ﬂickr.com/photos/cle0patra/2881365063/

Users

• Richer User Interfaces
• More responsive User Interfaces
• Real time UI’s
• Access on the go
• location


Developers
• Rapid development
• frameworks
• libraries/components
• tools
• Scalability / latency
• real-time
• UI

Operators

• Resource planning / allocation
• Scaling
• Good monitoring
• Good analytics / BI


RIA’s

• Flex/Flash
• Silverlight
• JavaFX
• Open Web


Latency

• Jakob Nielsen => 0.1 = responsive UI
• c = 186,000 mi/s
• 18,600 mi
• circumference of the earth = 24,900mi
• hmm


http://www.ﬂickr.com/photos/zykloid/3615237577/

http://www.ﬂickr.com/photos/lleugh/3663693123/

Cloud computing
• began as deploy / operational play
• will impact development
• stacks
• services
• platforms
• development in the cloud


http://www.ﬂickr.com/photos/st3f4n/3752208591/

Rails 3

• New Bundler
• deployment is not licked yet
• Responder
• even better REST controllers


Lift

• Security
• Comet
• AJAX support
• JSON forms
• http://liftweb.net/


Webmachine

• optimized for REST / HTTP
• the cool REST diagrams
• http://bitbucket.org/justin/webmachine/wiki/Home


Nitrogen

• Ajax
• Comet
• http://nitrogenproject.com/


-module (web_samples_binding2).
-include ("wf.inc").
-compile(export_all).

-record(mydata, {title, author, description, postback}).

main() -> #template { file="./wwwroot/twocolumn.html", bindings=[
{'Group', learn},
{'Item', samples}
]}.

title() -> "Record-Based Binding".
headline() -> "Record-Based Binding".
right() -> linecount:render().

% Binding data stored in a record.
get_data() -> [
#mydata { title="Title 1", author="Author 1", description="Description 1", postback={data, 1} },
#mydata { title="Title 2", author="Author 2", description="Description 2", postback={data, 2} },
#mydata { title="Title 3", author="Author 3", description="Description 3", postback={data, 3} }
].

get_map() -> #mydata { title=titleLabel@text, author=authorLabel@text, description=descriptionLabel@text, postback=myButton@postback }.

column1() ->
Data = get_data(),
Map = get_map(),
Column1 = [
#h3 { text="Div Binding" },
#bind { id=simpleBinding, data=Data, map=Map, body=[
#hr{},
#label { class=tiny, id=titleLabel },
#label { class=tiny, id=authorLabel },
#label { class=tiny, id=descriptionLabel },
#button { class=tiny, id=myButton, text="Button" }
]}
],
wf:render(Column1).


column2() ->
Data = get_data(),
Map = get_map(),
Column2 = [
#h3 { text="Table Binding" },
#table { class=tiny, rows=[
#tablerow { cells=[
#tableheader { text="Title" },
#tableheader { text="Author" },
#tableheader { text="Description" },
#tableheader { }
]},
#bind { id=tableBinding, data=Data, map=Map, body=#tablerow { cells=[
#tablecell { id=titleLabel },
#tablecell { id=authorLabel },
#tablecell { id=descriptionLabel },
#tablecell { body=#button { id=myButton, text="Button" } }
]}}
]}
],
wf:render(Column2).

event({data, Data}) ->
Message = "Clicked On Data: " ++ wf:to_list(Data),
wf:wire(#alert { text=Message }),
ok;

event(_) -> ok.


CouchApps

• CouchDB has a JS engine in it
• Have that engine run / serve apps

• Hook that engine up to Bespin

• http://github.com/couchapp/couchapp/tree/master

http://www.ﬂickr.com/photos/oskay/208844120/

http://www.ﬂickr.com/photos/ericrice/840284432/

http://www.ﬂickr.com/photos/foreversouls/4809950/

http://www.ﬂickr.com/photos/tidewatermuse/167891626/


http://www.ﬂickr.com/photos/sizima/382652040/

http://www.ﬂickr.com/photos/17972620@N00/3181540606/


http://www.ﬂickr.com/photos/steffanyszphotography/2364953056/

Coordinates

• ted.leung@sun.com
• @twleung
• http://www.sauria.com/blog
• http://www.slideshare.net/twleung


Thanks!


DjangoCon 2009 Keynote

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